Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1976-08-30
1978-08-29
Macon, Robert S.
Electricity: circuit makers and breakers
Liquid contact
Time delay
200148B, 200150A, H01H 3322
Patent
active
041105800
ABSTRACT:
An improved gas-type circuit-interrupter is provided utilizing a mixture of helium and sulfur-hexafluoride (SF.sub.6) gases, with the percentage concentration of sulfur-hexafluoride (SF.sub.6) gas being 10%, or less, by volume.
The improved gas-type circuit-interrupter of the present invention may be utilized to advantage as a "puffer-type" circuit-interrupter, in which relative movement between a piston and operating cylinder takes place for forcing the compressed gas to flow through a suitably-located orifice, or nozzle member, and into intimate engagement with the established arc disposed therein to effect its extinction.
Another form of the gas-type circuit-interrupter of the present invention may include a pressurized gas-reservoir chamber containing the aforesaid admixture of the helium and sulfur-hexafluoride gases in the proper concentration, that is 10%, or less, by volume, of sulfur-hexafluoride (SF.sub.6) gas with the remaining being made up substantially entirely of helium.
REFERENCES:
patent: 2038507 (1936-04-01), Edsall
patent: 2853540 (1958-09-01), Camilli et al.
patent: 2989577 (1961-06-01), Berg
patent: 3674696 (1972-07-01), Griffiths
Crout W. R.
Macon Robert S.
Westinghouse Electric Corp.
LandOfFree
Gas-type circuit-interrupters having admixtures of helium with s does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Gas-type circuit-interrupters having admixtures of helium with s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gas-type circuit-interrupters having admixtures of helium with s will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1634769